American Megatrends MAN-759 manual P14 Pinout, P3 Pinout, Cmos Drain J29 Setting

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Step 9 Attach Cables, Continued

P14 Pinout

 

Pin

Description

 

 

 

 

 

 

1

5V

 

 

 

 

 

 

2

5V

 

 

 

 

 

 

3

5V

 

 

 

 

 

 

4

Ground

 

 

 

 

 

 

5

Ground

 

 

 

 

 

 

6

Ground

 

 

 

 

 

 

 

 

 

P3 Pinout

 

Pin

Description

 

 

 

 

 

 

1

Ground

 

 

 

 

 

 

2

Ground

 

 

 

 

 

 

3

Ground

 

 

 

 

 

 

4

3.3V

 

 

 

 

 

 

5

3.3V

 

 

 

 

 

 

6

3.3V

 

 

 

 

 

 

 

 

 

J29 Erase Password J29 is a 2-pin berg that can be used to erase the contents of CMOS RAM, where all system configuration information is stored.

If you forget the AMIBIOS password, you can place a shorting bridge on J29 for a few seconds to erase the old password (and all system configuration information as well). You must then reboot the computer, run AMIBIOS Setup, and restore all system configuration information. The J29 settings are:

 

CMOS Drain

J29 Setting

 

Normal operation (factory setting).

OPEN

 

The contents of CMOS RAM are destroyed.

Shorted

 

 

 

 

 

 

Cont’d

Chapter 1 Hardware Installation

15

Image 19
Contents Pegasus Pentium PCI ISA Motherboard Revision History Preface American Megatrends BBS Phone Number CharacteristicsPacking List CPUs OverviewCPU External Clock Frequency PCI Expansion Slot Frequency Pegasus PCI Dimensions Pegasus PCI Motherboard Layout Avoid Static Electricity Unpack the MotherboardStep Action J16 J17 J18 J19 J21 J22 Configure CPU SpeedCore CPU Voltage J5 and J15 Setting Configure CPU VoltageJ12 Manufacturer Part Number AMI Part Number Install Voltage RegulatorConnect CPU Fan Install Memory Install CPUSimm Part Numbers Parameter SpecificationType Manufacturer Part Number Install the Motherboard Attach Cables ConnectorAttach Cables P1 Pinout P2 PinoutPin Description P14 Pinout Cmos Drain J29 SettingP3 Pinout Pin Assignments Pin Ground Keyboard Lock Kbdinh VCC Connect I/O Pin Signal DescriptionSTROBE# Connect I/O Twist in Floppy Cable J4 Floppy Connector PinoutPin Use Connect I/O Connect I/O KEY N/C REQ Pegasus drivers include Install DriversTest and Configure Hardware Installation Page Winbios Setup Using the Keyboard with Winbios Setup Using a Mouse with Winbios SetupKeystroke Action Winbios Setup Windows See Section Winbios Setup MenuStandard Setup SetupScsi Drive Type How to ConfigureParameter Description 152 MB Hard Disk Drive TypesAdvanced Setup Any optional option ROM messages are displayed Setting DescriptionOptional option ROM messages are not displayed Advanced Setup Optimal and Fail-Safe default settings are Disabled Cont’d Advanced Setup Disabled Optimal and Fail-Safe default settings are Disabled Chipset Setup Power Management APM to Enabled and set the power Advanced Power Management APM option toChipset Setup Chipset Setup Power Management Setup Power Management Setup Power Management Setup IRQ3 IRQ4 IRQ5 IRQ7 IRQ9 IRQ10 IRQ11 IRQ12 IRQ15 VGA Palette Action PCI/PnP SetupPCI/PnP Setup IRQ3 IRQ4 IRQ5 IRQ7 IRQ9 IRQ10 IRQ11 IRQ12 IRQ14 IRQ15 DMA Channel Peripheral Setup Offboard PCI IDE Primary IRQ Peripheral Setup Peripheral Setup EPP Security Amibios Password SupportSetting a Password Anti-Virus Changing a PasswordUtility Optimal OriginalFail-Safe Programming the Flash Eprom Programming Flash ROMProgramming the Flash ROM Number Description Code Description Bootblock Code Checkpoint CodesDeleting a Password Avoid Static Electricity Frequency Heat Airflow Temperatur Sink Over CPU Over other Engineering SpecificationsComponent